/* ==========================================================================
   NEXORA — Global Footer
   Reuses the shared design tokens/buttons/type-scale — no separate visual
   system. Two-part structure: a CTA band, then the multi-column footer.
   ========================================================================== */

.site-footer {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

/* --------------------------------------------------------------------------
   CTA band
   -------------------------------------------------------------------------- */
.footer-cta {
  position: relative;
  padding-block: clamp(56px, 8vw, 96px);
  text-align: center;
  overflow: hidden;
}

.footer-cta__glow {
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 640px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.16), rgba(12, 74, 110, 0.1) 55%, transparent 78%);
  filter: blur(90px);
  z-index: 0;
  pointer-events: none;
}

.footer-cta__inner {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin-inline: auto;
}

.footer-cta__heading {
  font-size: var(--text-h2);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.footer-cta__lead {
  font-size: var(--text-body-lg);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin-bottom: var(--space-6);
}

.footer-cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Main footer grid
   -------------------------------------------------------------------------- */
.footer-main {
  border-top: 1px solid var(--border-color);
  padding-block: clamp(48px, 6vw, 72px);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  gap: clamp(32px, 5vw, 56px);
}

.footer-brand__logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-4);
  transition: opacity 0.25s ease;
}

.footer-brand__logo:hover {
  opacity: 0.85;
}

.footer-brand__logo img {
  display: block;
  height: 28px;
  width: auto;
}

.footer-brand__desc {
  font-size: var(--text-body);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  max-width: 320px;
}

.footer-heading {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  position: relative;
  display: inline-block;
  width: fit-content;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color 0.25s ease, transform 0.25s var(--ease-premium);
}

.footer-links a:hover {
  color: var(--text-primary);
  transform: translateX(2px);
}

/* Contact column */
.footer-contact__label {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.footer-contact__number {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  display: block;
}

.footer-contact .btn {
  width: 100%;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Bottom bar
   -------------------------------------------------------------------------- */
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-block: var(--space-5);
}

.footer-bottom__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-bottom__copy {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.footer-bottom__copy a {
  color: var(--text-muted);
  transition: color 0.25s ease;
}

.footer-bottom__copy a:hover {
  color: var(--text-primary);
}

.footer-bottom__tag {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-brand__desc {
    max-width: 480px;
  }
}

@media (max-width: 639px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }

  .footer-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-bottom__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}